The software is typically available via the official Gradistat page .
Defining whether the data is in mm or φ units.
Once macros are enabled, you can start using the software. The workbook contains several worksheets, including the main interface for data input and a separate sheet with detailed instructions and examples. You will typically paste your grain size data (particle size classes and corresponding percentages) into the "Single Sample Statistics" or "Multiple Sample Statistics" input area, and then click the appropriate button to generate results. gradistat v 91 link
: The program accepts data from various sources, including sieve weights, laser granulometry, and X-ray sedigraphs .
Uses the widely accepted Folk & Ward and Method of Moments techniques. The software is typically available via the official
In the fields of sedimentology, geology, and environmental science, understanding the distribution of grain sizes in sediments is fundamental. It helps classify sedimentary environments, assess soil properties, and interpret past geological processes. However, manually calculating grain size statistics for many samples is a laborious and time-consuming task. This is where comes in—a powerful, user-friendly software package designed to automate and streamline particle size analysis.
Developed originally by Simon Blott, GRADISTAT is a Microsoft Excel-based program designed to analyze grain size statistics. It automates the complex mathematical processes required to understand sediment distribution. Version 9.1 represents a refined iteration of this tool, offering compatibility with modern spreadsheet environments while maintaining the rigorous analytical standards required for peer-reviewed research. Key Features of GRADISTAT v9.1 The workbook contains several worksheets, including the main
Understanding GRADISTAT Version 9.1: The Essential Tool for Sediment Granulometric Analysis